<template>
  <div id="contsainer"></div>
</template>
<script>
export default {
  data() {
    return {
      viewer: null
    }
  },
  mounted() {
    this.initCesium()
    this.addMaterialAppearance(this.viewer)
  },
  methods: {
    initCesium() {
      this.viewer = new Cesium.Viewer('contsainer', {
        animation: false,
        baseLayerPicker: false,
        fullscreenButton: false,
        geocoder: false,
        homeButton: false,
        infoBox: false,
        sceneModePicker: false,
        navigationHelpButton: false,
        scene3DOnly: true,
        timeline: false,
        selectionIndicator: false, //是否显示选取指示器组件
        shouldAnimate: false, //自动播放动画控件
        shadows: true, //是否显示光照投射的阴影
        terrainShadows: Cesium.ShadowMode.RECEIVE_ONLY, //地质接收阴影
        sceneMode: Cesium.SceneMode.SCENE3D
      })
      this.viewer._cesiumWidget._creditContainer.style.display = 'none' //	去除版权信息
    },
    addMaterialAppearance(viewer) {
      let instance = new Cesium.GeometryInstance({
        geometry: new Cesium.WallGeometry({
          positions: Cesium.Cartesian3.fromDegreesArrayHeights([
            109.0, 37.0, 10000.0,
            109.0, 38.0, 10000.0,
            105.0, 38.0, 10000.0,
            105.0, 37.0, 10000.0,
            109.0, 37.0, 10000.0
          ])
        }),
        materialSupport: Cesium.MaterialAppearance.MaterialSupport.BASIC.vertexFormat
      });

      let primitive = new Cesium.Primitive({
          geometryInstances: instance,
          appearance:
            new Cesium.MaterialAppearance({
              material: Cesium.Material.fromType(Cesium.Material.PolylineGlowType),
              faceForward: true
            })
        })


      viewer.scene.primitives.add(primitive);
      viewer.camera.flyTo({
        destination:Cesium.Cartesian3.fromDegrees(105,38,20000),
        orientation:{
          heading:Cesium.Math.toRadians(90),
          pitch:Cesium.Math.toRadians(-40),
          roll:0
        },
        duration:20
      })
    }
  }
}
</script>
<style scoped>
#contsainer {
  height: 100%;
  width: 100%;
  background-color: red;
}
</style>
